%0 Book %A %T Magyar Tudomány 2020/9 %B %D 2020 %R 10.1556/ %@ %U https://mersz.hu/hivatkozas/matud202009_po-heading-id_Xso7n1gUyUSu4YY6YkAaLA_p1#matud202009_po-heading-id_Xso7n1gUyUSu4YY6YkAaLA_p1